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@article{JRAM_1984__351_152652, author = {Carl C. Cowen and John J. Long}, title = {Some subnormal {Toeplitz} operators.}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {216--220}, publisher = {mathdoc}, volume = {351}, year = {1984}, zbl = {0532.47019}, url = {http://geodesic.mathdoc.fr/item/JRAM_1984__351_152652/} }
Carl C. Cowen; John J. Long. Some subnormal Toeplitz operators.. Journal für die reine und angewandte Mathematik, Tome 351 (1984), pp. 216-220. http://geodesic.mathdoc.fr/item/JRAM_1984__351_152652/